GitHub user davies opened a pull request:
https://github.com/apache/spark/pull/13812
[SPARK-16086] [SQL] create Row without any fields
## What changes were proposed in this pull request?
This PR allows us to create a Row without any fields.
## How was this patch tested?
Added a test for empty row and udf without arguments.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/davies/spark no_argus
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/13812.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #13812
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commit bb93954cfd558c811069ef2509aa0ac8493d7032
Author: Davies Liu <[email protected]>
Date: 2016-06-21T16:57:21Z
[SPARK-16086] [SQL] fix Python UDF without arguments (for 1.6)
commit be4ca51a736c557a8d0ffc058e57204321b93d76
Author: Davies Liu <[email protected]>
Date: 2016-06-21T17:04:22Z
add tests for empty Row
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